CN108044457A - The cryogenic processor and method of a kind of zirconia ceramics - Google Patents
The cryogenic processor and method of a kind of zirconia ceramics Download PDFInfo
- Publication number
- CN108044457A CN108044457A CN201711316571.6A CN201711316571A CN108044457A CN 108044457 A CN108044457 A CN 108044457A CN 201711316571 A CN201711316571 A CN 201711316571A CN 108044457 A CN108044457 A CN 108044457A
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- CN
- China
- Prior art keywords
- zirconia ceramics
- workpiece
- acoustic emission
- emission sensor
- refrigeration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/003—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving acoustic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
A kind of cryogenic processor of zirconia ceramics of the present invention, including machine body, the workbench being arranged on machine body, further include sequentially connected acoustic emission sensor, preamplifier and computer, workbench is equipped with refrigeration fixture, refrigeration fixture includes the working face for accepting workpiece, acoustic emission sensor is arranged on working face, and the lower section of working face is equipped with refrigerating plant.Refrigeration fixture can freeze to zirconia ceramics workpiece, optimize the processing performance of zirconia ceramics.The fine fisssure that acoustic emission sensor can be sensed in zirconia material process generates, and the signal of acoustic emission sensor is amplified and is sent to computer and handled by preamplifier, so as to find the early stage slight crack of zirconia material in time.
Description
Technical field
The present invention relates to zirconia ceramics field, more particularly, to be a kind of cryogenic processor of zirconia ceramics and
Method.
Background technology
Zirconia ceramics hardness is high, toughness is low, brittleness is high, micro-crack easily occurs in material in process, and tool wear is fast,
Both using diamond cutter, one can only also process cutter 5 to 7 ceramic casings.And due to the abrasion of cutter, make zirconium oxide
Ceramic manufacturing size is not in place, it is easy to zirconia ceramics chipping be made micro-crack occur.
The content of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide reduce tool wear, monitor the one of zirconia ceramics crackle
The low temperature process method of kind zirconia ceramics.
To achieve the above object, technical solution of the invention is：A kind of cryogenic processor of zirconia ceramics, bag
Include machine body, the workbench being arranged on machine body, further include sequentially connected acoustic emission sensor, preamplifier and
Computer, workbench are equipped with refrigeration fixture, and refrigeration fixture includes the working face for accepting workpiece, and acoustic emission sensor is arranged on
On working face, the lower section of working face is equipped with refrigerating plant.Refrigeration fixture can freeze to zirconia ceramics workpiece, optimize oxygen
Change the processing performance of zircon ceramic.The fine fisssure that acoustic emission sensor can be sensed in zirconia material process generates, preceding storing
The signal of acoustic emission sensor is amplified and is sent to computer by big device to be handled, so as to find zirconia material in time
Early stage slight crack.
Preferably, freeze fixture side be equipped with for refrigeration fixture spray cold air cold air nozzle.Accelerate refrigeration fixture
The cooling rate of interior zirconia ceramics workpiece and to after cooling zirconia ceramics workpiece keep the temperature.
Preferably, refrigerating plant is semiconductor refrigerating plate or the pipeline of the interior refrigerant for being equipped with flowing.
Preferably, acoustic emission sensor includes metal shell, piezoelectric element, high-frequency socket, lead, is equipped in metal shell
Chamber, piezoelectric element are arranged on the bottom of chamber, and conducting resinl is equipped between piezoelectric element and metal shell, is set at the top of piezoelectric element
There is silver conductive layer, high-frequency socket includes outer conductor and the interior inner wire for being placed on outer conductor, and outer conductor is arranged on metal shell, lead
In chamber, the both ends of lead connect the top of inner wire and piezoelectric element respectively；Protective film is arranged on the bottom surface of metal shell,
Protective film is electrical insulating film.Acoustic emission device can receive the crackle that processing zirconium oxide process generates, and be able to detect that micro-
Small vibration finds initial failure early, reduces quality cost, reduces the waste of raw material, reduces substandard product and comes into the market
Chance, greatly promote the quality of product.
A kind of low temperature process method of zirconia ceramics, comprises the following steps：
（1）Zirconia ceramics workpiece is put into a kind of refrigeration fixture of the cryogenic processor of above-mentioned zirconia ceramics solid
Fixed, refrigeration fixture cools down to zirconia ceramics workpiece；
（2）When zirconia ceramics workpiece temperature is down to -8 DEG C ~ -7 DEG C, zirconia ceramics workpiece is ground with diamond grinding head
Cut processing；
（3）It is taken out after zirconia ceramics work pieces process from refrigeration fixture.
Preferably, step（2）When zirconia ceramics workpiece temperature is down to -7 DEG C, with diamond grinding head to zirconia ceramics
Workpiece carries out grinding.Through experiment, zirconia ceramics workpiece processing performance at -8 DEG C ~ -7 DEG C is best.
By using above-mentioned technical solution, the beneficial effects of the invention are as follows：Freezing fixture can be to zirconia ceramics work
Part freezes, and optimizes the processing performance of zirconia ceramics workpiece, and when being ground by diamond grinding head, cutter consumes more
Small, processing efficiency improves, and the loss of diamond grinding head is reduced, and machining accuracy higher reduces the chipping of workpiece
Micro-crack generates.Acoustic emission sensor can sense fine fisssure in zirconia material process and generate, and preamplifier is by sound
The signal of emission sensor is amplified and is sent to computer and handled, so as to which the early stage for finding zirconia material in time is split
Trace.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic diagram for the detecting system that acoustic emission sensor is formed；
The structure diagram of Fig. 3 positions acoustic emission sensor.
Main Reference Numerals explanation：
Machine body 1；Workbench 2；Freeze fixture 3；Working face 31；Refrigerating plant 32；Cold air nozzle 4；Acoustic emission sensor 5；
Metal shell 51；Chamber 511；Protective film 52；Piezoelectric element 53；Silver conductive layer 531；Conducting resinl 54；High-frequency socket 55；Outer conductor
551；Inner wire 552；Lead 56；Preamplifier 6；Computer 7.
Specific embodiment
It is further illustrated the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figs. 1-3, a kind of cryogenic processor of zirconia ceramics of the present invention, including machine body 1, is arranged on machine
Workbench 2 on bed body 1, further includes sequentially connected acoustic emission sensor 5, preamplifier 6 and computer 7.Workbench 2
Refrigeration fixture 3 is equipped with, refrigeration fixture 3 includes the working face 31 for accepting zirconia ceramics workpiece, and acoustic emission sensor 5 is set
In on working face 31, the lower section of working face 31 is equipped with refrigerating plant 32, and refrigerating plant 32 is semiconductor refrigerating plate, can also be used
The pipeline of the interior refrigerant for being equipped with flowing.Machine body 1 is equipped with to spray cold air to refrigeration fixture in the side of refrigeration fixture
Cold air nozzle.
Acoustic emission sensor 5 includes metal shell 51, piezoelectric element 53, high-frequency socket 55, lead 56, in metal shell 51
Equipped with chamber 511, piezoelectric element 53 is arranged on the bottom of chamber 511, and conducting resinl is equipped between piezoelectric element 53 and metal shell 51
54, the top of piezoelectric element 53 is equipped with silver conductive layer 531, and high-frequency socket 55 includes outer conductor 551 and the interior outer conductor 551 that is placed on
Inner wire 552, outer conductor 551 are arranged on metal shell 51, and lead 56 is arranged in chamber 511, and the both ends of lead 511 connect respectively
The top of inner wire 522 and piezoelectric element 531；Protective film 52 is arranged on the bottom surface of metal shell 51, and protective film 52 is electrical insulating film.
The acoustic emission sensor 5 of Fig. 3 is mounted on after spinning upside down on the refrigeration fixture 3 of Fig. 1.
A kind of low temperature process method of zirconia ceramics, comprises the following steps：
（1）Zirconia ceramics workpiece is put into a kind of refrigeration fixture of the cryogenic processor of above-mentioned zirconia ceramics solid
Fixed, refrigeration fixture cools down to zirconia ceramics workpiece；
（2）When zirconia ceramics workpiece temperature is down to -8 DEG C ~ -7 DEG C（Optimal Temperature is -7 DEG C）, with diamond grinding head to oxidation
Zircon ceramic workpiece carries out grinding；
（3）It is taken out after zirconia ceramics work pieces process from refrigeration fixture.
It is above-described, be only presently preferred embodiments of the present invention, it is impossible to limit the scope implemented of the present invention, it is every according to
The equivalent change and decoration that scope of the present invention patent is made should be all still fallen in the range of the present invention covers.
Claims (6)
1. a kind of cryogenic processor of zirconia ceramics, special including machine body, the workbench being arranged on machine body
Sign is：Sequentially connected acoustic emission sensor, preamplifier and computer are further included, workbench is equipped with refrigeration fixture,
Refrigeration fixture includes the working face for accepting workpiece, and acoustic emission sensor is arranged on working face, and the lower section of working face is equipped with system
Device for cooling.
2. a kind of cryogenic processor of zirconia ceramics according to claim 1, it is characterised in that：The side of refrigeration fixture
Side is equipped with to spray the cold air nozzle of cold air to refrigeration fixture.
3. a kind of cryogenic processor of zirconia ceramics according to claim 1, it is characterised in that：Refrigerating plant is half
The pipeline of conductor cold plate or the interior refrigerant for being equipped with flowing.
4. a kind of cryogenic processor of zirconia ceramics according to claim 1, it is characterised in that：Acoustic emission sensor
Including metal shell, piezoelectric element, high-frequency socket, lead, chamber is equipped in metal shell, piezoelectric element is arranged on the bottom of chamber
Portion is equipped with conducting resinl between piezoelectric element and metal shell, the top of piezoelectric element is equipped with silver conductive layer, and high-frequency socket includes outer
Conductor and the interior inner wire for being placed on outer conductor, outer conductor are arranged on metal shell, and lead is arranged in chamber, the both ends difference of lead
Connect the top of inner wire and piezoelectric element；Protective film is arranged on the bottom surface of metal shell, and protective film is electrical insulating film.
5. a kind of low temperature process method of zirconia ceramics, comprises the following steps：
（1）Zirconia ceramics workpiece is put into a kind of low temperature process of zirconia ceramics of claim 1-4 any one of them to set
Fixed in standby refrigeration fixture, refrigeration fixture cools down to zirconia ceramics workpiece；
（2）When zirconia ceramics workpiece temperature is down to -8 DEG C ~ -7 DEG C, zirconia ceramics workpiece is ground with diamond grinding head
Cut processing；
（3）It is taken out after zirconia ceramics work pieces process from refrigeration fixture.
6. a kind of low temperature process method of zirconia ceramics according to claim 5, it is characterised in that：Step（2）Work as oxygen
When change zircon ceramic workpiece temperature is down to -7 DEG C, grinding is carried out to zirconia ceramics workpiece with diamond grinding head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316571.6A CN108044457A (en) | 2017-12-12 | 2017-12-12 | The cryogenic processor and method of a kind of zirconia ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316571.6A CN108044457A (en) | 2017-12-12 | 2017-12-12 | The cryogenic processor and method of a kind of zirconia ceramics |
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| CN108044457A true CN108044457A (en) | 2018-05-18 |
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| CN201711316571.6A Pending CN108044457A (en) | 2017-12-12 | 2017-12-12 | The cryogenic processor and method of a kind of zirconia ceramics |
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